Cognomen Rojanapanichkul (Rojanapanichkul 
) , throughout the world, is a very rare family name. The surname Rojanapanichkul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rojanapanichkul | Thailand |
Daeng, Chatchai, Wanthanee, and Rattanaporn